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A tangent PT is drawn to the circle x2+y2 = 4 at the point P( 3, 1). A straight line L, perpendicularto PT is a tangent to the circle (x–3)2+y2 = 1.

Section: Mathematics

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Question : 19

Total: 27

A common tangent of the two circles is

[JEE Adv 2012 P2]

x = 4
y = 2
x+√3y = 4
x+2√2y = 6

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